Astronomy, considered as one of the oldest sciences, is the scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earth's atmosphere (such as the cosmic background radiation).
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Announcing the KStars Image Challenge!
http://kstars.30doradus.org –
Ever wanted to contribute to KStars, but don't have programming skills? Now you can.
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